Same 1,

Let me give the figures.

H1:Mu<50, a simple random sample of size n=24 is obtained from a population that is known to be normally distributed.

If X(same mea)=47.1 and s=10.3.

B, If the researcher decides to test this hypothesis at the alpha+.05 level of signifacance, determine the critical value.

C- Draw a t-distribution.

A)=t0,-1.379

B=-t.005=-1.714

This is shaded with the left tail.

(-1.379>-1.714)

Part, it's basically self explanatory.. This gets shaded to the right, but why? The t0 was greater than t.010. It was -1.310>-t.10=1.383... It states decreases,isn't less than anything in those terms, shaded to the left?